Calculate the wavelength of an electromagnetic wave of frequency 15 MHz .
Explanation
The correct formula to calculate the wavelength of an electromagnetic wave is λ = c / f, where λ is the wavelength, c is the speed of light (approximately 3 x 10^8 m/s), and f is the frequency. Given that the frequency is 15 MHz, we can substitute the values to get λ = 3 x 10^8 / (15 x 10^6) = 0.02 m or 2 cm.
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